Full Stack Developer

Job Title: Full-Stack MERN Developer (5–8 Years Experience)

Location: Borivali, Mumbai (Onsite)

Experience: 6–8 Years

Joining: Immediate Joiners

Employment Type: Full-time

Job Overview

We are looking for an experienced Full-Stack MERN Developer to join our engineering team in Borivali, Mumbai. The ideal candidate should have strong hands-on experience building scalable web applications using React, Node.js, Express, and MongoDB, with a solid understanding of REST APIs, microservices architecture, performance optimization, and cloud infrastructure.

You will work on consumer-facing applications, handle large datasets, and contribute to building reliable, high-performance systems.

Key Responsibilities

• Design, develop, and maintain full-stack web applications using MERN stack
• Build scalable and secure RESTful APIs and backend services using Node.js & Express
• Develop reusable and high-performance React components with proper state management
• Implement microservices-based architecture and inter-service communication
• Optimize application performance at both frontend and backend levels
• Work with MongoDB for data modeling, indexing, and performance tuning
• Handle large datasets efficiently and ensure system reliability
• Implement logging, tracing, and monitoring for production-ready applications
• Collaborate with product, frontend, backend, and DevOps teams
• Write clean, maintainable, and well-documented code

Technical Requirements

Backend

• Strong hands-on experience with Node.js & Express.js
• Expertise in building REST APIs and backend business logic
• Strong understanding of async programming (Callbacks, Promises, Async/Await)
• Experience with microservices architecture
• Hands-on experience with MongoDB (Expert level)
• Working knowledge of PostgreSQL / MySQL
• Experience with Kafka or other message queue systems
• Familiarity with Bull / job schedulers

Frontend

• Strong experience with React.js
• Hands-on experience with state management (Redux, Context API, or similar)
• Good understanding of HTML, CSS, AJAX
• Experience with performance optimization techniques in React

Infrastructure & Cloud

• Experience with Docker and Kubernetes (K8s)
• Hands-on exposure to AWS services such as EC2, S3, ELB, AutoScaling, CloudFront
• Understanding of CI/CD pipelines is a plus

Core Computer Science

• Good understanding of Data Structures & Algorithms
• Solid knowledge of Operating Systems fundamentals

Good to Have

• Experience with Redis for caching
• Exposure to Vue.js
• Experience working on consumer-facing web or app products
• Strong debugging and problem-solving skills
• Familiarity with application monitoring tools (logs, metrics, tracing)

What We’re Looking For

• Strong problem-solving mindset and ownership attitude
• Ability to learn new tools and technologies quickly
• Comfortable working in fast-paced, production-driven environments
• Immediate or short-notice joiners preferred

Job Description

Position -   Full stack Developer

Location - Mumbai

    Experience - 2-5 Years 

Who are we

Based out of IIT Bombay, HaystackAnalytics is a HealthTech company creating clinical genomics products, which enable diagnostic labs and hospitals to offer accurate and personalized diagnostics. Supported by India's most respected science agencies (DST, BIRAC, DBT), we created and launched a portfolio of products to offer genomics in infectious diseases. Our genomics based diagnostic solution for Tuberculosis was recognized as one of top innovations supported by BIRAC in the past 10 years, and was launched by the Prime Minister of India in the BIRAC Showcase event in Delhi, 2022.

Objectives of this Role:

• Work across the full stack, building highly scalable distributed solutions that enable positive user experiences and measurable business growth
• Ideate and develop new product features in collaboration with domain experts in healthcare and genomics 
• Develop state of the art enterprise standard front-end and backend services
• Develop cloud platform services based on container orchestration platform 
• Continuously embrace automation  for repetitive tasks
• Ensure application performance, uptime, and scale, maintaining high standards of code quality  by using clean coding principles and solid design patterns 
• Build robust tech modules  that are Unit Testable, Automating recurring tasks and processes  
• Engage effectively with team members and collaborate to upskill and unblock each other

Frontend Skills 

• HTML 5  
• CSS framework  (  LESS/ SASS / Tailwind ) 
• Es6 / Typescript 
• Electron app /Tauri)
• Component library  ( Bootstrap , material UI, Lit ) 
• Responsive web layout ( Flex layout , Grid layout ) 
• Package manager --> yarn-/ npm / turbo
• Build tools - > (Vite/Webpack/Parcel)
• Frameworks -- > React  with Redux of Mobx / Next JS
• Design patterns 
• Testing - JEST / MOCHA / JASMINE / Cypress)
• Functional  Programming concepts  
• Scripting  ( powershell , bash , python )

Backend Skills 

• Nodejs - Express / NEST JS 
• Python /  Rust
• REST API 
• SOLID Design Principles
• Database (postgresql / mysql / redis /  cassandra / mongodb ) 
• Caching  ( Redis ) 
• Container Technology  ( Docker / Kubernetes )  
• Cloud ( azure , aws , openshift, google cloud) 
• Version  Control - GIT 
• GITOPS 
• Automation ( terraform , ansible ) 

Cloud  Skills 

• Object storage
• VPC   concepts 
• Containerize Deployment
• Serverless architecture 

Other  Skills 

• Innovation and thought leadership
• UI - UX design skills  
• Interest in in learning new tools, languages, workflows, and philosophies to grow
• Communication 

To know more about us- https://haystackanalytics.in/

Bookeventz is looking for a rock star coder to work closely with the founders to build on our core platform and mobile applications. A Techie who has an Expert understanding of Server Logics, REST APIs and core web technologies.

Should have a great understanding of MEAN/MERN Stack.

Our Tech Stack:

PHP, MySql, CodeIgniter, React.js, Node.js, ExpressJS, React Native, Javascript, HTML5, CSS3, REST API, AWS Server Management (RDS, Lambda, API Gateway), Ubuntu, Git, CI/CD Good To have: Python, Payment Gateway.

Few Challenges we are working on right now:

- Working on various optimization to improve page speed.

- Improving Server Response & Load balancing.

- Server-side development on various projects.

- Customized CRM to increase leads handled per salesperson to double a day.

- Create a platform for users to create their custom event website.

Job Objectives:

- Integration of user- facing elements developed by front- end developers with server- side logic

- Optimize web applications to maximize speed and scale. Support diverse clients from high- powered desktop computers to small mobile devices

- Optimization of the application for maximum speed and scalability

- Implementation of security and data protection

- Collaborate with senior management, operations & business team

- Building Rest APIs and maintain Database optimizations

Looking For:

- Great understanding of Node, react, Express, Socket.io, MVVM framework

- Worked on e- commerce website, server handling and deployments scripts

- The one who has worked on customer facing product for 2 years

- Strong knowledge of MEAN stack (Min 3 yrs professional working experience) with basic understanding of LAMP.

- Experience designing scalable, fault tolerant systems and databases.

An analytics, software development and product focused company with a focus to create value for the various sectors of the Society. We try to use technology as a innovation for various problems people face and hence resulting in the upliftment of the people.

What we are looking

We are searching for an organized, ambitious .NET developer to generate software using .NET's infrastructure. The .NET developer's duties include sourcing project requirements, deciding on the most appropriate software solutions, and ensuring that developments are error-free. You should also ensure that the final products are well-presented and engaging.

Main characteristics of who we’re looking to hire in our company:  Ability to complete projects, follow through, respect deadlines and come up with creative solutions.  Willingness to learn and advance in his/her career and become a useful member of our team. Communicative, people person, team player, intelligent, curious and hard-workin.

Principal Responsibilities: 

• Develop dynamic SPAs (single page applications).
• Test and deploy applications and systems.
• Hands on and implements complex AngularJS applications, directives, controllers, services.
• Deep functional knowledge or with Web Services (REST, SOAP, etc) is needed to be successful in this position.
• Ensure software meets all requirements of quality, security, modifiability, extensibility etc

Education Requirements:

• Graduated or pursuing BSc/BA in Computer Science, Engineering or a related field.

Training, Skills, Knowledge & Experience

• 3-5 years work experience as a developer.
• Development experience using Microsoft Asp.NET C#.
• Core web fundamentals: HTML5, CSS and JavaScript.
• Working knowledge of databases and database structure.
• Working experience on ASP.NET Web API.
• Working experience with source control Git.
• Solid understanding of Responsive Web Design and framework.
• Excellent troubleshooting and communication skills.
• Familiar with scrum methodology

1. Extensive experience in Javascript / NodeJS in the back end
2. Front end frameworks such as Bootstrap, Pug, Jquery
3. Experience in web frameworks like ExpressJS, Webpack
4. Experience in Nginx, Redis, Apache Kafka and MQTT
5. Experience with MongoDB
6. Experience with Version Control Systems like Git / Mercurial
7. Sound knowledge in Software engineering best practices
8. Sound knowledge in RestFul API Design
9. Working knowledge of Automated testing tools
10. Experience in maintaining production servers (Optional)
11. Experience with Azure DevOps (Optional)

1. Experience in digital payments or financial services industry is a plus.
2. Participation in the processes of strategic project-planning meetings.
3. Be involved and participate in the overall application lifecycle.
4. Collaborate with External Development Teams.
5. Define and communicate technical and design requirements, understanding workflows and write code as per requirements.
6. Develop functional and sustainable web applications with clean codes.
7. Focus on coding and debugging.

• Should have expert level knowledge to Design, Develop and test Web Apps with Angular versions 6 and above.
• Primary Skills – Angular6+, HTML, CSS3, JavaScript.
• Node JS as backend will be advantage
• Knowledge of Mongo, MySql will be advantage
• Highly skilled at front-end engineering using Object-Oriented JavaScript, TypeScript, various JavaScript,TypeScript patterns and frameworks.
• Should have experience in publishing and consuming Services using REST API
• Excellent time-management, multi-tasking, and communication skills. Capable of handling multiple projects and related complexities at the same time.